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Figure 1

From: Atomic Resolution Interfacial Structure of Lead-free Ferroelectric K0.5Na0.5NbO3 Thin films Deposited on SrTiO3

Figure 1

EELS spectra imaging of the KNN/STO interface (filtered).

(a) HAADF-STEM image of KNN/STO interface with the area from which EELS mapping was carried out (highlighted with a green line rectangle); (b) integrated line profiles of atomic columns across the interface along the out-of-plane direction; (c) and (d) color-coded Nb and Ti elemental maps, respectively; (e) composite elemental map with Nb in red, Ti in green; (f) integrated line profiles of Nb and Ti signals in (c) and (d) across the interface, respectively.

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